Originally Posted by mnadamn
I was wondering how often this seems to cycle and how low of a temp. you can maintain. I am looking at building something like this in the near future but most threads I have seen use 2" insulation. I was also curious as to the size of the original minifridge. The one I have is about 4.5 cuft and I was thinking that it would be nice to possibly fit another carboy in there...
I cannot speak for the OP, but with my setup like this, I might hear it cycle once every 1.5- 2 hours or so if I have both chambers set at ~65 (ambient temps are usually ~78) I cannot get 2" insulation down here, so I glued 2 - 3/4" sheets together and built it like that. The size of the fridge should not matter, many of the fridges have the same size compressor whether it is a 1.5cu. ft or a 6 cu. ft fridge. Look for the BTU rating or Kw/year on the compressor. If I remember correctly, most small fridges are in the 320-360 range on Kw/year.